Incandescent gas-burner.



PATENTED OCT. 13, 1903.

. E. W. PHELPS.

INOANDESGENT GAS BURNER UNIT D STATES Patented October 13, 1903.

PATENT OFFICE.

iNCANDESCENT GAS-BU RN ER.

CEECIFIGATION forming part of Letters Patent No. 741,068, dated October 13, 1903.

Application filed December 26, 1902. Serial No. 136,684. (No model.]'

To all whmn it may concern:

Be it known that I, EDWARD WILBUR PHELPS, a citizen of the United States of America, residing at Toronto, in the county of York, Province of Ontario, Canada, have invented certain new and useful Improvements in Incandescent Gas-Burners, of which the following is a specification.

My invention relates to improvements in incandescent gas-burners; and the object of the invention is to provide a burner in which great economy in the manufacture will be effected and also to secure the greatest benefit in the admixture of air and gas and whereby the regulator of the gas-feed will be capable of the most delicate adjustment; and it consists,essentially, of a cylindrical tube having holes therearound in proximity to its lower end and a diagonal slot immediately under the said holes, a tube of larger dimen sions fitted over the aforesaid tube and converging to the inner tube at its lower end above the said holes, and a cap surmounting the nose-piece and having a central smoothbore orifice from its lower end terminating in asmall opening at the upper end and designed to fit over a corresponding part of the nose-piece and a threaded pintle projecting through the diagonal slot into the cap to operate the latter, the various parts being constructed in detail as hereinafter more particularly described.

Figure 1 is a perspective view of my burner complete. Fig. 2 is an enlarged sectional perspective view omitting the chimney and mantle. Fig. 3 is a perspective detail of the nosepiece. Fig. 4 is a detail of the regulator-cap. Fig. 5 is a detail of the screw-head.

Like letters of reference indicate corre sponding parts in each figure.

a is the inner tube of the burner, having the air-holes 5 extending therethrough in proximity to its lower end. The air-holesb surround the tube and are large and close together.

c is an outer tube fitted over the inner tube a and converging at its lower end to form a tight joint over the said tube a above the holes 5.

d is a fiat ring surrounding the inner tube toward its upper end and partitioning 0d the space e between the inner and outer tubes.

f is a cap having a gauze top designed to fit over the top end of the tube a and having the sockets h to support the wire of the mantle t.

j is a chimney-support; surrounding the outer tube a and is of any suitable pattern.

7a is a nose-piece having the threaded orifice Z, designed to screw onto the main gassupply. The nose-piece]; comprises a base portion m,havingthe aforesaid central threaded orifice Z from its lower side and the cylindrical body portion n turned perfectly smooth and true and having a plurality of orifices 0 leading from the threaded orifice lup through the said cylindrical body portion and. open ing out at the top thereof in proximity to the outer edge and a cone-shaped tip 10 project ing upwardly from the center of the body portion n.

q is a cap with a tapered crown r and having a smooth-bore internal orifice s, converging when it reaches the crown 'r to the small orifice t, centrally situated in the said crown. The cap q is designed to fit closely over the cylindrical body portion n in order that the cone-shaped tip 10 may protrude more or less through the orifice t as regulated. u is a threaded pintle screwinginto a threaded orifice o in the periphery of the cap (1 and inserted through the diagonal orifice 10, located below the air-holes b in the tube a.

a: is a screw-head having the central threaded orifice y, designed to screw onto the outer threaded end of the pintle u and when necessary to abut the tube a to lock the cap in any desired position on the cylindrical body portion n.

The particular advantages of this burner are, first, the simplicity of construction, for in this device it will be seen that the nosepiece can be turned out of a factory in a much shorter time and in much greater quantities per hour than any other nose-piece as far as I am aware, for in the construction described in the foregoing the base m, the body portion n, and the tip ye may all be finished in sub-.

' projects through the said orifice.

.piece 7c. It will also be found that this form of regulator admits of very delicate adj nstment, for on loosening the screw-head 00 the pintle u may be moved up and down in the said slot. downwardly on the body portion 71, and the smooth peripheries of the body portion and the inner bore of the cap permit the slightest possihle movement of the screw to affect the size of the orifice through which the gas passes to the burner, as the cone-shaped tip The smooth peripheriesjust mentioned also secure the best-known gas-tight joint for the burner, making it absolutely certain that all the gas from the supply will pass through the orifice i.

The holes b in the tube 66 of the burner located just at the gas-feed admit the air, which rises with the gas and becomes heated in ascent, obviating the necessity of providing a greater length of double cylinder and securing through the admission of the air with the gas to the burner avery much improved light.

Among the advantages of my burner I may also mention the particular arrangement of parts which reduces the number to a minimum and very much simplifies and cheapens the making of burners of this class, and I may say that instead of taking away from the appearance of such burners it materially adds to the attractiveness in general design and finish. However, the utility is what I am aiming at in the simplifying of the construction, and while I add to this the cheapeningin production, yet the quality and brilliance of the light obtained is increased materially at a lesser consumption of gas than has heretofore been known as far as I am aware.

What I claim as my invention is-- 1. In an incandescent gas-burner, the combination with the mantle-supporting doublecylinder burner having its inner tube extending downwardly from the converging lower end of the outer tube, and having a plurality of air-holes, of a nose-piece having a reduced upper end formed cylindrically and smooth, and provided with a plurality of orifices leading therethrough from the gas-supply, and a This will move the cap upwardly orcone-shaped tip rising centrally from the top, a cap having an internally-smooth-hore orifice converging at its upper end to a comparatively minute opening, and means for adjusting the said cap, as and for the purpose speci- 2. In an incandescent gas-burner, the combination with the mantle-supporting doublecylinder burner, havingits inner tube extending downwardly provided with a plurality of air-holes toward its lower end, and a diagonal slot, of a nose-piece having a cylindrical reduced upper end formed with a smooth periphery, and a cone-shaped tip and a plurality of orifices extending therethrough and leading from the main gas-supply, a cap having a tapered crown and an interior smoothbore orifice converging toward its upper end, and a pintle extending outwardly from the cap and through the slot, and means for clamping it in any desired position in the slot, as and for the purpose specified.

3. In an incandescent gas-burner, the combination with the mantle-supporting doublecylinder burner having its inner tube extending downwardly, and provided with a plurality of air-holes toward its lower end and a diagonal slot, of a nose-piece having a cylindrical reduced upper end formed with a smooth periphery, and a cone-shaped tip and a plurality of orifices extending therethrough and leading from the main gas-supply, a cap having a tapered crown and an interior smooth-bore orifice converging toward its upper-end and terminating in a small opening at the point of the tapered crown and provided with a transverse threaded hole in its outer periphery, a pintle designed to be inserted through the aforesaid diagonal slot into the said threaded hole, and a head having a centrally-threaded orifice designed to screw onto the outer end of the pintle, and act as a clamp, as'and for the purpose specified.

Signed at Toronto, in the county of York, in the Province of Ontario,Oanada, this 18th day of December, 1902.

EDWARD WILBUR PHELPS.

WVitnesses:

B. BOYD, M. MCLAREN. 

